<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .red{
            color:red;
        }
    </style>
</head>
<body>
<div id="example">


</div>

</body>
<script src="bundle.js"></script>
</html>